Battle of Gettysburg
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| Battle of Gettysburg | |
|---|---|
 Thure de Thulstrup / Adam Cuerden · Public domain · source | |
| Name | Battle of Gettysburg |
| Date | July 1–3, 1863 |
| Place | Gettysburg, Pennsylvania |
| Result | Union victory |
| Combatants | United States (Union), Confederate States of America |
| Commanders | George G. Meade, Robert E. Lee |
| Strength | ~93,000 (Union), ~72,000 (Confederate) |
| Casualties | ~51,000 total |
Battle of Gettysburg
The Battle of Gettysburg was a pivotal three-day engagement fought July 1–3, 1863, near Gettysburg, Pennsylvania, between the principal armies of the United States (Union) and the Confederate States of America. The clash involved major commanders such as George G. Meade, Robert E. Lee, James Longstreet, Richard S. Ewell, J.E.B. Stuart, Winfield Scott Hancock, and George G. Meade's subordinate corps including leaders like John F. Reynolds, Daniel Sickles, and Oliver O. Howard. The battle marked a turning point in the American Civil War by halting Lee's invasion of the North and setting the stage for strategic and political consequences involving figures like Abraham Lincoln, Jefferson Davis, Ulysses S. Grant, and foreign observers from Great Britain and France.
Background
In spring 1863 the Confederate Army of Northern Virginia, commanded by Robert E. Lee, conducted operations following successes at Chancellorsville and sought a strategic offensive into Union territory to influence Northern politics, relieve pressure on the Confederate home front in Virginia and possibly encourage recognition from Great Britain or France. Lee's campaign intersected with the Union Army of the Potomac under a succession of commanders culminating in George G. Meade who assumed command days before the battle after the removal of Joseph Hooker. The military context included maneuvers across the Rappahannock River, logistics affected by railroads such as the Baltimore and Ohio Railroad and the Pennsylvania Railroad, and cavalry operations influenced by leaders like J.E.B. Stuart and Alfred Pleasonton.
Opposing forces and commanders
The Union Army of the Potomac comprised corps commanders including John F. Reynolds (I Corps), Winfield Scott Hancock (II Corps), Daniel Sickles (III Corps), George Sykes (V Corps), and Gouverneur K. Warren (V Corps chief engineer), with artillery directed by figures like Henry J. Hunt. The Confederate Army of Northern Virginia fielded infantry corps under James Longstreet (First Corps), Richard S. Ewell (Second Corps), and A.P. Hill (Third Corps), with cavalry commanded by J.E.B. Stuart. Senior political-military figures such as Jefferson Davis observed Confederate strategy while Union political leadership including Abraham Lincoln and members of the War Department monitored developments. Subordinate brigade and division leaders included Fitzhugh Lee, Evander Law, John Bell Hood, Pickett, Cadmus Wilcox, Heth, and Pender.
Campaign and movements leading to Gettysburg
Lee's invasion began after the Confederate victory at Chancellorsville with the Army of Northern Virginia moving north through the Shenandoah Valley and into Maryland and Pennsylvania to threaten Harrisburg and disrupt Union supply lines. Union cavalry under Alfred Pleasonton and Confederate cavalry under J.E.B. Stuart conducted reconnaissance and screening operations, with controversial movements by Stuart leaving Lee with limited cavalry intelligence. Skirmishes and concentrations occurred around locations such as Cashtown, Emmitsburg, Heidlersburg, and Hanover as corps maneuvered via roads like the Taneytown Road and the Chambersburg Pike. Command decisions by Lee, including orders to Ewell and Longstreet, and Union dispositions under Meade determined the converging collision near Gettysburg.
Battle overview (July 1–3, 1863)
On July 1 Confederate divisions under Heth and Pender engaged Union forces northwest of Gettysburg near McPherson Ridge and Seminary Ridge, resulting in early Confederate tactical gains and the death of John F. Reynolds. Reinforcements including Hancock and elements of the I and XI Corps stabilized lines on Cemetery Hill and Cemetery Ridge. July 2 saw Confederate assaults on Union positions at Little Round Top, Devil's Den, The Wheatfield, and Culp's Hill with notable actions involving Joshua Chamberlain, James Longstreet's assaults, and counterattacks by units under Gouverneur K. Warren and Daniel Sickles. On July 3 Lee ordered a massive infantry assault known as Pickett's Charge involving divisions under George Pickett, Isaac R. Trimble, and Lewis Armistead across open fields toward the Union center on Cemetery Ridge, supported by an artillery barrage led by Confederate gunners; the charge was repulsed with heavy losses. Simultaneously, Confederate cavalry under J.E.B. Stuart attempted operations on the Union rear near Catoctin and Rock Creek but failed to alter the outcome.
Aftermath and casualties
The battle inflicted approximately 46,000 to 51,000 casualties including killed, wounded, captured, and missing across both armies, with Union losses roughly 23,000 and Confederate losses roughly 28,000; prominent deaths and wounds included generals such as John F. Reynolds and Lewis Armistead (wounded). Lee retreated across the Potomac River back into Virginia under the logistical management of aides like Walter Taylor and guarded by rearguard actions including those by A.P. Hill and Richard Ewell. Meade's decision not to aggressively pursue Lee has been debated by historians including Shelby Foote, James M. McPherson, Bruce Catton, and Edwin C. Bearss in assessments contrasting Meade with Ulysses S. Grant. The battle precipitated political effects in Washington, D.C., influenced the Emancipation Proclamation's political environment, and affected Confederate morale and strategic options for the remainder of the American Civil War.
Legacy and historical significance
Gettysburg entered national memory through commemorations such as the dedication of the Soldiers' National Cemetery where Abraham Lincoln delivered the Gettysburg Address, a brief speech linking the battle to republican ideals and the cause of the Union. The battlefield became a site for veterans' reunions, preservation efforts by figures like David Wills and organizations including the Sons of Union Veterans of the Civil War and the Gettysburg Battlefield Memorial Association, and later federal stewardship under the National Park Service. Cultural representations include battlefield photography by Mathew Brady, accounts by participants like Samuel H. Starr and Edward Everett, scholarly works by James M. McPherson and Shelby Foote, and portrayals in films such as Gettysburg (1993 film) and literature including Michael Shaara's novel The Killer Angels. Gettysburg's strategic and symbolic consequences shaped Reconstruction-era policy, veteran memory, and international perceptions involving observers from Great Britain and France; its preserved landscape continues to inform military studies, public history, and heritage tourism.